SACRAMENTO, Calif. — After years of massive, destructive wildfires, California and much of the American West may see a shorter and more manageable wildfire season thanks to an extraordinarily wet winter. According to the National Oceanic and Atmospheric Administration, the state has only just begun to see a historic snowpack melt into streams and rivers, and the flows could be high for many weeks. The agency’s Southern California coordination center reported in a briefing Monday that most of California has seen below normal temperatures since Oct. 1. These conditions have helped about 68% of the state exit drought conditions within three months — a feat that would have required two or three wet years otherwise. …The wet winter and lingering snowpack may also translate to fewer wildfires.